```html
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>后台管理系统架构设计</title>
    <link href="https://cdn.staticfile.org/font-awesome/6.4.0/css/all.min.css" rel="stylesheet">
    <link href="https://cdn.staticfile.org/tailwindcss/2.2.19/tailwind.min.css" rel="stylesheet">
    <link href="https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;700&display=swap" rel="stylesheet">
    <script src="https://cdn.jsdelivr.net/npm/mermaid@latest/dist/mermaid.min.js"></script>
    <style>
        body {
            font-family: 'Noto Sans SC', Tahoma, Arial, Roboto, "Droid Sans", "Helvetica Neue", "Droid Sans Fallback", "Heiti SC", "Hiragino Sans GB", Simsun, sans-serif;
            background-color: #f8fafc;
            color: #1e293b;
        }
        .hero-gradient {
            background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
        }
        .card-hover {
            transition: all 0.3s ease;
        }
        .card-hover:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }
        .drop-cap::first-letter {
            float: left;
            font-size: 3.5em;
            line-height: 0.8;
            margin: 0.1em 0.1em 0.1em 0;
            color: #4f46e5;
            font-weight: 700;
        }
        .nav-link {
            position: relative;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: #4f46e5;
            transition: width 0.3s ease;
        }
        .nav-link:hover::after {
            width: 100%;
        }
    </style>
</head>
<body class="min-h-screen">
    <!-- 导航栏 -->
    <nav class="bg-white shadow-sm py-4">
        <div class="container mx-auto px-4 md:px-6 flex justify-between items-center">
            <div class="flex items-center space-x-2">
                <i class="fas fa-chalkboard-teacher text-indigo-600 text-2xl"></i>
                <span class="text-xl font-bold text-gray-800">教育管理系统</span>
            </div>
            <div class="hidden md:flex space-x-8">
                <a href="#" class="nav-link text-gray-600 hover:text-indigo-600 font-medium">首页</a>
                <a href="#" class="nav-link text-gray-600 hover:text-indigo-600 font-medium">功能展示</a>
                <a href="#" class="nav-link text-gray-600 hover:text-indigo-600 font-medium">架构设计</a>
                <a href="#" class="nav-link text-gray-600 hover:text-indigo-600 font-medium">联系我们</a>
            </div>
            <button class="md:hidden text-gray-600">
                <i class="fas fa-bars text-xl"></i>
            </button>
        </div>
    </nav>

    <!-- Hero Section -->
    <section class="hero-gradient text-white py-20 md:py-28">
        <div class="container mx-auto px-4 md:px-6">
            <div class="max-w-4xl mx-auto text-center">
                <h1 class="text-4xl md:text-5xl font-bold mb-6">现代化教育管理系统架构设计</h1>
                <p class="text-xl md:text-2xl mb-8 opacity-90">基于MVC模式构建的高效、可维护的后台管理系统</p>
                <div class="flex justify-center space-x-4">
                    <a href="#features" class="bg-white text-indigo-600 px-6 py-3 rounded-lg font-medium hover:bg-gray-100 transition duration-300 shadow-md">功能特性</a>
                    <a href="#architecture" class="bg-indigo-800 text-white px-6 py-3 rounded-lg font-medium hover:bg-indigo-900 transition duration-300 shadow-md">架构设计</a>
                </div>
            </div>
        </div>
    </section>

    <!-- 功能模块展示 -->
    <section id="features" class="py-16 bg-white">
        <div class="container mx-auto px-4 md:px-6">
            <div class="text-center mb-16">
                <h2 class="text-3xl font-bold text-gray-800 mb-4">系统核心功能</h2>
                <div class="w-20 h-1 bg-indigo-600 mx-auto"></div>
            </div>
            
            <div class="grid md:grid-cols-2 lg:grid-cols-3 gap-8">
                <!-- 教师功能 -->
                <div class="bg-gray-50 rounded-xl p-6 card-hover border border-gray-200">
                    <div class="text-indigo-600 mb-4">
                        <i class="fas fa-user-tie text-4xl"></i>
                    </div>
                    <h3 class="text-xl font-bold text-gray-800 mb-3">教师后台管理</h3>
                    <ul class="space-y-2 text-gray-600">
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-2"></i>
                            <span>教师角色与数据管理</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-2"></i>
                            <span>个人信息展示与编辑</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-2"></i>
                            <span>密码修改功能</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-2"></i>
                            <span>学员信息管理</span>
                        </li>
                    </ul>
                </div>
                
                <!-- 学员功能 -->
                <div class="bg-gray-50 rounded-xl p-6 card-hover border border-gray-200">
                    <div class="text-indigo-600 mb-4">
                        <i class="fas fa-user-graduate text-4xl"></i>
                    </div>
                    <h3 class="text-xl font-bold text-gray-800 mb-3">学员管理功能</h3>
                    <ul class="space-y-2 text-gray-600">
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-2"></i>
                            <span>学员信息列表展示</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-2"></i>
                            <span>学员信息增删改查</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-2"></i>
                            <span>个人信息修改页面</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-2"></i>
                            <span>页面复用与权限控制</span>
                        </li>
                    </ul>
                </div>
                
                <!-- 架构设计 -->
                <div class="bg-gray-50 rounded-xl p-6 card-hover border border-gray-200">
                    <div class="text-indigo-600 mb-4">
                        <i class="fas fa-project-diagram text-4xl"></i>
                    </div>
                    <h3 class="text-xl font-bold text-gray-800 mb-3">MVC架构设计</h3>
                    <ul class="space-y-2 text-gray-600">
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-2"></i>
                            <span>Controller统一处理请求</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-2"></i>
                            <span>Model处理业务逻辑</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-2"></i>
                            <span>View负责数据展示</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-2"></i>
                            <span>代码结构清晰可维护</span>
                        </li>
                    </ul>
                </div>
            </div>
        </div>
    </section>

    <!-- MVC架构详解 -->
    <section id="architecture" class="py-16 bg-gray-50">
        <div class="container mx-auto px-4 md:px-6">
            <div class="text-center mb-16">
                <h2 class="text-3xl font-bold text-gray-800 mb-4">MVC架构设计详解</h2>
                <div class="w-20 h-1 bg-indigo-600 mx-auto"></div>
            </div>
            
            <div class="grid md:grid-cols-3 gap-8 mb-16">
                <div class="bg-white rounded-xl p-6 shadow-md">
                    <div class="text-red-500 mb-4">
                        <i class="fas fa-code text-4xl"></i>
                    </div>
                    <h3 class="text-xl font-bold text-gray-800 mb-3">Controller 控制器</h3>
                    <p class="text-gray-600 drop-cap">负责处理用户请求，获取数据并交给模型层处理，然后根据处理结果调用相关视图进行展示。在Servlet中实现，统一处理老师和学员的登录请求。</p>
                </div>
                
                <div class="bg-white rounded-xl p-6 shadow-md">
                    <div class="text-blue-500 mb-4">
                        <i class="fas fa-database text-4xl"></i>
                    </div>
                    <h3 class="text-xl font-bold text-gray-800 mb-3">Model 模型</h3>
                    <p class="text-gray-600 drop-cap">包含业务逻辑和数据访问。处理核心业务规则和数据交互，为控制器提供处理后的数据结果。包括学员信息管理、教师信息管理等业务模块。</p>
                </div>
                
                <div class="bg-white rounded-xl p-6 shadow-md">
                    <div class="text-green-500 mb-4">
                        <i class="fas fa-eye text-4xl"></i>
                    </div>
                    <h3 class="text-xl font-bold text-gray-800 mb-3">View 视图</h3>
                    <p class="text-gray-600 drop-cap">负责数据展示和用户界面。使用JSP/HTML实现，包括登录表单、学生信息展示等页面。通过复用视图减少重复代码，提高开发效率。</p>
                </div>
            </div>
            
            <!-- Mermaid图表 -->
            <div class="bg-white rounded-xl p-6 shadow-md mb-8">
                <h3 class="text-xl font-bold text-gray-800 mb-4">MVC工作流程</h3>
                <div class="mermaid">
                    graph TD
                    A[用户请求] --> B[Controller]
                    B --> C[Model处理业务]
                    C --> D[返回处理结果]
                    D --> B
                    B --> E[选择View]
                    E --> F[呈现界面]
                </div>
            </div>
            
            <!-- 页面复用解决方案 -->
            <div class="bg-white rounded-xl p-6 shadow-md">
                <h3 class="text-xl font-bold text-gray-800 mb-4">页面复用解决方案</h3>
                <div class="mermaid">
                    graph LR
                    A[登录成功] --> B{判断角色}
                    B -->|教师| C[教师首页]
                    B -->|学员| D[学员首页]
                    C --> E[展示教师功能菜单]
                    D --> F[展示学员功能菜单]
                </div>
                <div class="mt-6 bg-indigo-50 p-4 rounded-lg">
                    <h4 class="font-bold text-indigo-800 mb-2">实现思路：</h4>
                    <p class="text-gray-700">1. 在Controller中根据登录用户的角色类型，设置不同的属性标志<br>
                    2. 在同一个index.jsp页面中，通过JSTL标签或JSP脚本判断用户角色<br>
                    3. 根据角色动态显示对应的功能菜单和内容区域<br>
                    4. 公共部分（如页眉页脚）保持不变，实现最大程度的代码复用</p>
                </div>
            </div>
        </div>
    </section>

    <!-- 开发建议 -->
    <section class="py-16 bg-white">
        <div class="container mx-auto px-4 md:px-6">
            <div class="max-w-3xl mx-auto">
                <h2 class="text-3xl font-bold text-gray-800 mb-8 text-center">最佳实践建议</h2>
                
                <div class="space-y-6">
                    <div class="flex items-start">
                        <div class="bg-indigo-100 p-3 rounded-full mr-4">
                            <i class="fas fa-lightbulb text-indigo-600 text-xl"></i>
                        </div>
                        <div>
                            <h3 class="text-xl font-bold text-gray-800 mb-2">统一入口设计</h3>
                            <p class="text-gray-600">所有请求通过统一的Controller处理，避免分散的业务逻辑，便于权限控制和日志记录。</p>
                        </div>
                    </div>
                    
                    <div class="flex items-start">
                        <div class="bg-indigo-100 p-3 rounded-full mr-4">
                            <i class="fas fa-sitemap text-indigo-600 text-xl"></i>
                        </div>
                        <div>
                            <h3 class="text-xl font-bold text-gray-800 mb-2">清晰的分层结构</h3>
                            <p class="text-gray-600">严格区分Controller、Model和View的职责，避免业务逻辑渗入视图层。</p>
                        </div>
                    </div>
                    
                    <div class="flex items-start">
                        <div class="bg-indigo-100 p-3 rounded-full mr-4">
                            <i class="fas fa-retweet text-indigo-600 text-xl"></i>
                        </div>
                        <div>
                            <h3 class="text-xl font-bold text-gray-800 mb-2">最大化代码复用</h3>
                            <p class="text-gray-600">通过角色判断实现页面复用，公共组件提取为独立模块，减少重复代码。</p>
                        </div>
                    </div>
                    
                    <div class="flex items-start">
                        <div class="bg-indigo-100 p-3 rounded-full mr-4">
                            <i class="fas fa-shield-alt text-indigo-600 text-xl"></i>
                        </div>
                        <div>
                            <h3 class="text-xl font-bold text-gray-800 mb-2">安全的权限控制</h3>
                            <p class="text-gray-600">在Controller层实现权限验证，确保用户只能访问授权范围内的功能和数据。</p>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </section>

    <!-- Footer -->
    <footer class="bg-gray-900 text-gray-300 py-10">
        <div class="container mx-auto px-4 md:px-6">
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```